Physiology of plants

Hi, onyema!

What is quoted below, is from the following site.

Temperature Effect on Plants (http://www.ces.ncsu.edu/depts/hort/consumer/weather/tempeffect-plants.html)


Thermoperiod refers to daily temperature change. Plants produce maximum growth when exposed to a day temperature that is about 10 to 15°F higher than the night temperature. This allows the plant to photosynthesize (build up) and respire (break down) during an optimum daytime temperature, and to curtail the rate of respiration during a cooler night. High temperatures cause increased respiration, sometimes above the rate of photosynthesis. This means that the products of photosynthesis are being used more rapidly than they are being produced. For growth to occur, photosynthesis must be greater than respiration.

Thanks!